FireDisc error

[23:55:20] [Server thread/WARN]: java.lang.IllegalArgumentException: No enum constant org.bukkit.Material.LOG
[23:55:20] [Server thread/WARN]: 	at java.lang.Enum.valueOf(Enum.java:238)
[23:55:20] [Server thread/WARN]: 	at org.bukkit.Material.valueOf(Material.java:1)
[23:55:20] [Server thread/WARN]: 	at me.simplicitee.firedisc.FireDisc.cutBlock(FireDisc.java:174)
[23:55:20] [Server thread/WARN]: 	at me.simplicitee.firedisc.FireDisc.progress(FireDisc.java:123)
[23:55:20] [Server thread/WARN]: 	at com.projectkorra.projectkorra.ability.CoreAbility.progressAll(CoreAbility.java:274)
[23:55:20] [Server thread/WARN]: 	at com.projectkorra.projectkorra.BendingManager.run(BendingManager.java:117)
[23:55:20] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:81)
[23:55:20] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:400)
[23:55:20] [Server thread/WARN]: 	at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1036)
[23:55:20] [Server thread/WARN]: 	at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:406)
[23:55:20] [Server thread/WARN]: 	at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:984)
[23:55:20] [Server thread/WARN]: 	at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:824)
[23:55:20] [Server thread/WARN]: 	at java.lang.Thread.run(Thread.java:823)
[23:55:20] [Server thread/ERROR]: me.simplicitee.firedisc.FireDisc@38ff7d59[
  loc=Location{world=CraftWorld{name=world},x=171.57148681028315,y=71.36396768719217,z=241.43618323114953,pitch=-21.900024,yaw=92.4479}
  direction=-0.8467576587695119,0.410824171861662,-0.33797184369316113
  damage=2.0
  range=25.0
  currRange=9.0
  revert=true
  drop=false
  control=true
  bluefire=false
  cooldown=1500
  hexVals={3349ff,3371ff,33b8ff,33e6ff,fddb78,300cfe,03d2d2}
  r=java.util.Random@eaa22bd6
  player=CraftPlayer{name=ThisIsOllie}
  bPlayer=com.projectkorra.projectkorra.BendingPlayer@1ebf57a[
  permaRemoved=false
  toggled=true
  tremorSense=true
  illumination=true
  chiBlocked=false
  slowTime=0
  player=CraftPlayer{name=ThisIsOllie}
  uuid=0c854e4a-0f8f-4986-83c9-eca0733eebc4
  name=ThisIsOllie
  stance=<null>
  cooldownManager=com.projectkorra.projectkorra.util.DBCooldownManager@6d878f82
  elements=[§cFire]
  subelements=[§4Lightning, §4Combustion]
  abilities={5=FireDisc}
  cooldowns={FireDisc=com.projectkorra.projectkorra.util.Cooldown@e4f6b42e, Illumination=com.projectkorra.projectkorra.util.Cooldown@198fc3a4}
  toggledElements={§cFire=true, §aEarth=true, §bWater=true, §6Chi=true, §7Air=true}
]
  flightHandler=com.projectkorra.projectkorra.util.FlightHandler@16e3882a
  attributeModifiers={}
  attributeValues={}
  started=true
  removed=false
  hidden=false
  id=-2147483478
  startTime=1597528519933
  startTick=15861
  attributesModified=true
]